331693926 has 8 divisors (see below), whose sum is σ = 663387864. Its totient is φ = 110564640.

The previous prime is 331693889. The next prime is 331693931. The reversal of 331693926 is 629396133.

It is a sphenic number, since it is the product of 3 distinct primes.

331693926 is an admirable number.

It is a super-2 number, since 2×331693926² = 220041721090586952, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27641155 + ... + 27641166.

It is an arithmetic number, because the mean of its divisors is an integer number (82923483).

Almost surely, 2^331693926 is an apocalyptic number.

331693926 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331693926 is a wasteful number, since it uses less digits than its factorization.

331693926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55282326.

The product of its digits is 157464, while the sum is 42.

The square root of 331693926 is about 18212.4662250888. The cubic root of 331693926 is about 692.2227041674. Note that the first 3 decimals are identical.

The spelling of 331693926 in words is "three hundred thirty-one million, six hundred ninety-three thousand, nine hundred twenty-six".